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Question

The role of double fertilisation in angiosperms is to produce
  1. cotyledons
  2. endocarp
  3. endosperm
  4. hormones


Solution

The correct option is C endosperm
Of the two sperm cells entering the embryo sac, one sperm fertilizes the egg cell, forming a diploid zygote; the other sperm fuses with the two polar nuclei, forming a triploid cell (primary endosperm nucleus) that develops into the endosperm. Together, these two fertilisation events in angiosperms are known as double fertilisation. Cotyledon is an embryonic leaf in seed-bearing plants, one or more of which are the first leaves to appear from a germinating seed.

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